https://support.google.com/edu/classroom/thread/326934136?hl=en&sjid=17398842986192202794-NA

https://philpeople.org/profiles/weekend-offer-what-is-the-cheapest-day-to-buy-frontier-tickets-27

https://superuser.com/questions/1882495/fees-cancellationhow-much-is-a-cancellation-fee-on-expedia

https://philpeople.org/profiles/weekend-offer-what-is-the-cheapest-day-to-buy-frontier-tickets-28

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https://philpeople.org/profiles/weekend-offer-what-is-the-cheapest-day-to-buy-frontier-tickets-31

https://support.google.com/edu/classroom/thread/326931713?hl=en&notify=new&sjid=10334534426087499119-NC

https://patch.com/california/los-angeles/calendar/event/20250224/eb3689da-5e1b-4ab1-855f-106214323269/flight–alert-what-day-do–airlines-prices-drop

https://patch.com/new-york/newcity/calendar/event/20250224/e6eb49a3-b4cf-418e-ad1d-bbc03eef7b6b/faq-support-what-day-do-erican-rlines-prices-drop